Dev tools · alternatives · 2026

24 alternatives to Email verification made simple - JSON API and Webform

Stop bouncing and start connecting with our email check API

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Email verification made simple - JSON API and Webform launched in 2017; newer entries below may have overtaken it.

1. 1
   Email Validator!▲193

   Free JSON API that gives you a simple way to validate emails

   2015 · garridodiaz.com · its alternatives →

2. 2
   Email Verify API▲92

   Simple email validation API for a $39 lifetime license

   2021 · cloudlyn.com · its alternatives →

3. 3
   Context.IO▲226

   API for email inboxes

   2015 · its alternatives →

4. 4
   Proofy▲181

   Quickly validate and verify your email lists.

   2016 · proofy.io · its alternatives →

5. 5
   Email List Verify▲330

   Remove hard bounces and email traps from your email lists

   2016 · emaillistverify.com · its alternatives →

6. 6
   Submit JSON▲127

   Easy form submissions and email notifications

   2023 · submitjson.com · its alternatives →

7. 7
   Email Verification API▲4

   Real-time and convenient email validation tool

   2021 · emailverification.whoisxmlapi.com · its alternatives →

8. 8
   Email Validation and Verification API▲2

   Validate and verify email address

   2018 · its alternatives →

9. 9
   Spam Check▲93

   A free JSON API to check your email messages' spam scores

   2015 · spamcheck.postmarkapp.com · its alternatives →

10. 10
    Email Validator API ▲7

    It tells you if a Email is valid or not

    2025 · thirsty-melisse-hardcode-c2fce731.koyeb.app · its alternatives →

11. 11
    Simple Email API▲15

    2021 · batsign.me · its alternatives →

12. 12
    Legitmailbox▲75

    Email Verification API with monthly reports

    2021 · its alternatives →

13. 13
    Truelist▲53

    Unlimited email validation

    2024 · truelist.io · its alternatives →

14. 14
    Real-time email validation JS Widget▲30

    Verify an email address typed in your form in real-time

    2020 · app.thechecker.co · its alternatives →

15. 15
    VerifyRight▲5

    Catch fake emails before they signup

    2025 · verifyright.io · its alternatives →

16. 16
    mailboxlayer▲3

    Email Validation & Verification JSON API for Developers

    2021 · mailboxlayer.com · its alternatives →

17. 17
    APIddress — email validation API▲17

    The email validation API that shows its work

    Jun 2026 · apiddress.com · its alternatives →

18. 18
    Email Validator API▲8

    This is an easy way to check email addresses

    2020 · its alternatives →

19. 19
    Mailerio▲30

    Keep your lists clean with email validation tool

    2025 · mailerio.com · its alternatives →

20. 20
    EmailToCheck▲5

    Free email verification tool

    2024 · emailtocheck.netlify.app · its alternatives →

21. 21
    Validate Email – 100% Free & Private▲28

    Instant Email Verification – Real, Reachable & Secure

    2025 · validate.email · its alternatives →

22. 22
    Email Validation API – Validateemail.io▲1

    Verify email addresses in real time with a fast REST API. Check syntax, domain and MX records, and catch disposable, role-based and mistyped emails.

    7h ago · validateemail.io · its alternatives →

23. 23
    VerifyKit.io▲10

    Email validation API

    2025 · verifykit.io · its alternatives →

24. 24MS
    Maildown – super simple email API▲40

    2020 · maildown.dev · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →